/* $NetBSD: endian_machdep.h,v 1.3 2013/05/23 21:39:49 christos Exp $ */ /*- * Copyright (c) 2013 The NetBSD Foundation, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _BYTE_ORDER # error Define MIPS target CPU endian-ness in port-specific header file. #endif #ifdef _LOCORE /* * Endian-independent assembly-code aliases for unaligned memory accesses. */ #if _BYTE_ORDER == _LITTLE_ENDIAN # define LWHI lwr # define LWLO lwl # define SWHI swr # define SWLO swl # if SZREG == 4 # define REG_LHI lwr # define REG_LLO lwl # define REG_SHI swr # define REG_SLO swl # else # define REG_LHI ldr # define REG_LLO ldl # define REG_SHI sdr # define REG_SLO sdl # endif #endif #if _BYTE_ORDER == _BIG_ENDIAN # define LWHI lwl # define LWLO lwr # define SWHI swl # define SWLO swr # if SZREG == 4 # define REG_LHI lwl # define REG_LLO lwr # define REG_SHI swl # define REG_SLO swr # else # define REG_LHI ldl # define REG_LLO ldr # define REG_SHI sdl # define REG_SLO sdr # endif #endif #endif /* LOCORE */ |